IMPORTANT INFORMATION AND GLOSSARY
INSTALLATION INSTRUCTIONS
for Vinyl Projecting Windows with Integral Nailing Fin (JII023)
Thank you for selecting JELD-WEN products. Attached are
JELD-WEN’s recommended installation instructions for vinyl bay,
bow and garden windows which incorporate an integral nailing n.
While the use of these installation instructions is recommended,
installation in strict compliance with AAMA specications (2400-02)
is an alternate method of window installation. Use of the AAMA
specications (2400-02) will not affect application of the JELD-WEN
limited warranty.
Newer construction methods have led to an increase in air and water
tightness in buildings. This frequently leads to negative air pressure
inside the home, which can draw water through very small openings.
Our installation method integrates the window with the weather
barrier (typically building wrap).
Not all window types can be installed into every wall condition in all
areas. Consult your local building code ofcial for applicable building
codes and regulations. Local building code requirements supersede
recommended installation instructions.
Note! Installations where the sill is higher than 35 feet above ground
level, or any product installation into a wall condition not specically
addressed in these instructions, must be designed by an architect or
structural engineer.
Failure to install windows into square, level, and plumb openings could
result in denial of warranty claims for operational or performance
problems.
Note to Installer: Provide a copy of these instructions to the building
owner. By installing this product, you acknowledge the terms and
conditions of the limited warranty as part of the terms of sale.
ROUGH OPENINGS
This installation guide specically addresses sheathed wall and open-stud
construction. Windows without an integral head and seat board must be
placed on a structure that provides continuous support to the sill.
FULLY SHEATHED WALL CONSTRUCTION
The wall framing
is covered by
sheathing and
the window will
be mounted with
the nailing n
ush against the
sheathing.
Sheathed Wall
King
stud
Sill
Trimmer
studs
Header
Sheathing
Cripple studs
GLOSSARY
Mull Joint
The joint where two or more window units are structurally joined
together.
Mulled Unit
Two or more window units structurally joined together.
Shiplap
The layering method in which each layer overlaps the layer below it so
that water runs down the outside.
Weep Hole (weep channel)
The visible exit or entry part of a water drainage system used to drain
water out of a window.
1 hr
12
1
11
2
10
9
3
8 4
7 5
6
Estimated Install
Time for New
Construction
First Time: 2 hrs
Experienced: 1.5 hrs
Professional:
OPEN STUD CONSTRUCTION
The wall
framing needs
Open-Stud with Backing
to be covered
by backing
support before
the window can
be installed. The
window will be
mounted with
the nailing n
ush against the
applied backing
support.
This backing
support should
be a non waterdegradable,
thin (max. 1/8" thick) sheet material such as vinyl sheeting. Completely
surround the rough opening with the backing support as shown.
Backing support must be applied before building wrap.
SAFETY AND HANDLING
INSTALLATION INSTRUCTIONS
for Vinyl Projecting Windows with Integral Nailing Fin (JII023)
SAFETY
• Read and fully understand ALL manufacturers’ instructions before
beginning.
• Do not work alone. Two or more people are required. Use safe lifting
techniques.
• Use caution when handling glass. Broken or cracked glass can cause
serious injury.
• Wear protective gear (e.g. safety glasses, gloves, ear protection, etc.).
• Operate hand/power tools safely and follow manufacturer’s operating
instructions.
• Use caution when working at elevated heights.
NEEDED MATERIALS AND TOOLS
MATERIALS
Note! Follow all material manufacturers’ instructions for proper use
and compatibility.
• 1 3/4" galvanized roong nails. Nails must penetrate at least 1" into
framing (or as required by local code).
• #10 x 3 1/2" corrosion resistant pan head screws. Screws must
penetrate at least 1" into framing (or as required by local code).
• Non water-degradable or compressible shims to level the sill
• 4", 6", or 9" (as required by local code and window conguration)
wide self-adhesive ashing: We recommend OSI® QUAD® Butyl
Flashing Tape or equivalent.
• Spray adhesive/primer for self adhesive ashing. Such as Loctite® 300
or equivalent
• Sealant: We recommend OSI® QUAD® Max Sealant or equivalent. This
can be used in any application and can be painted or ordered in a
color matched product, if desired.
WINDOW AND MATERIALS HANDLING
• Make sure operable windows are closed and locked prior to
installation.
• Heed material manufacturers’ handling and application instructions.
• Protect adhesive surfaces from dirt, moisture, direct sunlight and
folding over onto themselves.
• Handle in vertical position; do not carry at or drag on oor.
• Do not put stress on joints, corners, or frames.
• Store window in dry, well-ventilated area in vertical, leaning position
to allow air circulation; do not stack horizontally.
• Protect from exposure to direct sunlight during storage.
• Install only when conditions and sheathing are dry.
IF INJURY OCCURS, IMMEDIATELY SEEK MEDICAL ATTENTION!
• Backer rod 1/8" larger than the widest portion of the gap (used in
conjunction with sealant bead).
• Polyurethane low expansion Window and Door foam: We recommend
OSI® QUAD® Foam or equivalent).
• Non water-degradable or compressible shims
TOOLS
• Tape measure
• Utility knife
• Level (4' minimum
recommended)
• J-roller
• Caulking gun
• Drill with 1/8" tapered bit and
3/8" countersink
• Construction stapler with 3/8"
staples
• Hammer
1
REMOVE PACKAGING
Remove shipping materials such as corner covers, shipping blocks or
pads. If there is a protective lm on the glass, do not remove it until
installation and construction are complete.
INSPECT YOUR WINDOW
• Cosmetic damage
• Product squareness (diagonal measurements not more than 1/8"
different)
• Correct product (size, color, grid pattern, handing, glazing, energyefciency requirements, etc.)
• Cracked frame welds
REMOVE PACKAGING AND INSPECT WINDOW
2
• Splits, cracks, holes, missing sections or other damage to the nailing
n longer than 6" and/or within 1/2" of window frame
• For units with integral head and seat boards, ensure the top of the
mull joints are covered and sealed with silicone.
If any of the above conditions represent a concern, or if you expect
environmental conditions to exceed the window’s performance rating,
do not install the window. Contact your dealer or distributor for
recommendations.
INSTALLATION INSTRUCTIONS
for Vinyl Projecting Windows with Integral Nailing Fin (JII023)
2
• Verify the
width and
height of the
bay or bow
window are
each 1/2"
smaller than
the rough
opening width
and height. The
rough opening
for the garden
window should
be the same
size as the
window frame.
3
FOR RETROFIT INSTALLATIONS
1. Remove
sufcient
siding to
expose enough
intact building
wrap to
properly seal
the window to
the opening.
2. Remove the
old window. If
building wrap
is damaged,
apply new
building wrap
in shiplap
manner. Verify
trimmer studs/header are structurally sound. Continue with the
instructions.
3. Trim the sides sufciently to allow the nailing n to be mounted
against the sheathing.
INSPECT ROUGH OPENING
A
B
PREPARE ROUGH OPENING
45°
C
D
E
• Verify the rough opening is square. The (A) and (B) measurements
above should be the same. Maximum allowable deviation from square
is 1/8" for windows 20 sq. ft. and smaller, and 1/4" for windows larger
than 20 sq. ft.
• Verify the rough opening is level and plumb (C). The maximum
allowable deviation is 1/16" for every 2' of rough opening (not to
exceed 1/8").
• The rough opening sill must not be crowned or sagged (D). A 5 degree
sloped sill is recommended.
• Verify the exterior face of the rough opening is a single plane (E) with
less than 1/8" twist from corner to corner.
• Verify the header is supported by trimmer studs.
PREPARE BUILDING WRAP
Note! Check with the building wrap manufacturer to verify the
following steps will not void their product warranty. Follow
manufacturers' instructions.
1. Trim building wrap ush with the rough opening.
2. At the head, cut building wrap at 45° and tape up as shown.
3. Trim the sides sufciently to allow the nailing n to be mounted
against the sheathing.
Note! If installing a bay or bow window, proceed with section 4
“PREPARE SILL FOR BAY/BOW WINDOW.” If installing a garden window,
skip to section 8, “PREPARE SILL FOR GARDEN WINDOW.”
3
INSTALLATION INSTRUCTIONS
for Vinyl Projecting Windows with Integral Nailing Fin (JII023)
4
PREPARE SILL FOR BAY/BOW WINDOW
PREPARE/SHIM THE SILL
1. Use self adhesive ashing to waterproof the sill.
2. Flashing must have at least 2"
of visible material below nail
n. Flashing width must be at
least measurement
1 + 2 + 1 3/4".
3. Measure the width of the
frame from the interior to the
Measure
frame
width
1
nail n (measurement 1) and
subtract 1/4". Transfer this
measurement from the outside
edge of the rough opening
Width of
rough opening
sill and draw a line all along
the rough opening sill. This is
where the back of the ashing
will sit.
4. Cut a piece of ashing the
length of the sill plus 12".
5. Place ashing on rough
opening sill, wrapping the
ashing up 6" on each jamb as
shown.
6. Pull release tape and set
ashing into place.
7. Fold the ashing down onto
the sheathing. Staple ashing
to the wall and seal the corner
edges as shown.
8. Smooth out any bubbles or creases with a J-roller. Remove and
replace if necessary.
9. Install the continuous shim as
follows:
Interior
2
Note! The continuous shim must
be 1/2" shorter than the width
of the window frame, be 1/4"
narrower than the depth of the
Depth of
window
minus 1/4"
Continuous
shim
window frame sill, should level
the rough opening sill and be no
more than 1/4" thick.
Flashing
Nail n position
2" min.
Align the shim on the sill ush
12"
with the exterior and centered
between the side jambs. If installing a mulled unit, leave gaps at the
mull joint(s) so they don't sit on the shim and tack into place or secure
with sealant.
5
INSTALL BAY/BOW WINDOW
Warning! To avoid injury, use at least two people to install. Temporarily
support the window until fully installed.
Note! Window should be pre-drilled and countersunk before placing
inside the rough opening.
1. Pilot holes should
be spaced 1 1/2"
from interior
1 1/2"
edges, 4" from
each corner and
then evenly spaced
no more than 12"
around the inside
perimeter. Drill
1/8" pilot holes
and countersink.
2. Place window
onto the drain
4"
Countersink
mat in the rough
opening. The
window sill must
rest on and be
fully supported
by the rough
opening framing.
3. Fasten window
with a galvanized
roong nail
3"- 7"
through the
nailing n
between 3" and
7" from one
lower corner.
4. Align side jamb
Framing
shims with the
pre-drilled holes
so fasteners will
penetrate shims.
Shims must be set
back at least 1/4"
1/4"
sealant
gap
Shim
Seat board
from the interior
of the jamb.
Secure shims with sealant.
5. Inspect window for square, level, and plumb. Test for proper
operation (remove and reinstall if necessary).
6. Using #10 x 3 1/2" pan head screws, fasten the jambs, head, and seat
board through the pre-drilled and countersunk pilot holes. Screws
should penetrate the previously installed shims.
4
INSTALLATION INSTRUCTIONS
for Vinyl Projecting Windows with Integral Nailing Fin (JII023)
6
FLASH BAY/BOW WINDOW
PREPARE FLASHING
1. Cut four pieces of self-adhesive ashing as follows:
• One head board piece 6" longer than the head board
• One header piece 12" longer than the header
• Two side pieces 7" longer than each side
SPRAY ADHESIVE/PRIMER
Note! Protect window from overspray.
2. Apply spray
adhesive/primer
as instructed
to nailing n,
sheathing and
building wrap
6"
at the sides and
head as shown.
APPLY THE SELF-ADHESIVE FLASHING
Note! Keep the edge of the self-adhesive ashing as close to the
window frame as possible.
3. Fold the head
board piece
lengthwise into
“L” shape. Center
and apply one
leg to head
Cut
3"
board and the
other to the wall
e
v
i
s
e
h
d
A
y
a
r
p
S
above the rough
opening header.
Cut the corners to
allow the ashing
to lay at against
Fold
down
the wall.
4. Starting 2" above
the header, apply
the side pieces.
5. Center and apply
the header piece
above the header.
2"
2"
6"
6. Press the ashing
down with a
J-roller.
6"
7. Inspect selfadhesive ashing
for gaps or
bubbles (remove
and replace if
necessary).
7
COMPLETE BAY/BOW WINDOW INSTALLATION
1. If the window has
a pre-installed
cable support
system, follow
the instructions
Bracing Under
the Mull Joints
provided by the
manufacturer.
2. If the cable
support system
is not used,
build seat board
Seal corners
bracing to
support at least
750 lbs of total
weight (window
plus window
contents). Primary
support should be
provided under
the mull joints of
the unit.
3. Remove temporary support after full support is installed.
4. Release the building wrap from above the header (previously taped
up) and overlap the header ashing. Seal the ends with self-adhesive
ashing or building wrap tape.
5. Seal all four corners of the window with a 1/4" bead of sealant. Tool
into a llet shape.
6. The head and seat boards should be protected and insulated with a
structure designed and built as required by local code.
7. Create a continuous
air seal on the
interior jambs and
Continuous air seal
head between the
rough opening and
the window frame
with low expansion
polyurethane foam
or backer rod and
Flashing
Sill
Continuous
shim
sealant. On the sill,
run a continuous
bead of sealant
Rough
opening
along the foam
wedge where it
meets the window
frame or seat board.
AFTER INSTALLATION
1. Adjust window for best operation.
2. Install exterior wall surface within 30 days of window installation.
3. Maintain gap of 3/8" between window frame and nal exterior wall
surface (siding, stucco, etc.).
4. Protect recently installed units from damage from plaster, paint, etc.
by covering the unit with plastic.
Note: End of bay/bow installation instructions.
5
INSTALLATION INSTRUCTIONS
for Vinyl Projecting Windows with Integral Nailing Fin (JII023)
8
Note! The sill lip is the garden window’s only source of support inside
the rough opening. It is very important that the sill be level and at.
1. Measure the
length of the
sill and cut
a piece of
ashing the
exact length of
the sill.
2. Measure and
draw a line
1/2" from the
exterior edge
of the sill; this
is where the
ashing will sit.
3. Remove foam
backing and
release tape
under foam
backing.
PREPARE SILL FOR GARDEN WINDOW
Width of
rough opening
1/2"
4. Press the
adhesive
section of the
ashing onto
outside section
of sill.
5. Pull release
tape on
remaining
section of the
ashing.
6. Fold the
ashing down
onto the house
wrap.
7. Staple ashing
to the wall and
seal the corner
edges.
Release
tape
Seal
corners
9
Warning! To avoid injury, use at least two people to install. Temporarily
support the window until fully installed.
1. Place window
sill onto the
drain mat and
tilt into the
rough opening.
The window
sill must rest
on and be fully
supported
by the rough
opening
framing.
2. Fasten
window with
a galvanized
roong nail
through the nailing n between 3"-7" from one lower corner.
INSTALL GARDEN WINDOW
3"-7"
3. Inspect window for square, level, and plumb. Test for proper
operation (remove and reinstall if necessary).
Note! Fastener
heads must be
ush. Do not
dent nailing n.
Always use prepunched holes or
pre-drill with a
3/16" bit.
4. Fasten window
through nailing
n holes 3"7" from the
corners and 8"
apart all the
way around
the window.
8"
3"-7"
8"
3"-7"
6
INSTALLATION INSTRUCTIONS
for Vinyl Projecting Windows with Integral Nailing Fin (JII023)
10
FLASH GARDEN WINDOW
PREPARE FLASHING
1. Cut three pieces of self-adhesive ashing as follows:
• One header piece 12" longer than the header
• Two side pieces 7" longer than each side
SPRAY ADHESIVE/PRIMER
Note! Protect window from overspray.
2. Apply spray
adhesive/
primer as
instructed to
nailing n,
sheathing and
6"
building wrap
at the sides and
head as shown.
APPLY THE SELF-ADHESIVE FLASHING
Note! Keep the edge of the self-adhesive ashing as close to the
window frame as possible.
3. Apply the side
pieces starting
2" above the
header.
4. Center and
2"
2"
apply the
header piece
e
v
i
s
e
h
d
A
y
a
r
p
S
above the
header.
5. Press the
ashing down
with a J-roller.
6. Do not
allow gaps
or bubbles
beneath
self-adhesive
2"
6"
ashing
(remove and
replace if
necessary).
7
INSTALLATION INSTRUCTIONS
for Vinyl Projecting Windows with Integral Nailing Fin (JII023)
11
Garden windows
are rated for a
weight handling
load of 8 lbs.
per square foot.
Although it is
not required,
the installer may
provide extra
support to the
garden window
with “L” brackets.
Build seat board
bracing under the
mull joints of the
unit. To reduce
heat loss, the
bottom of the
window may be
insulated. Check local building code requirements.
COMPLETE INSTALLATION
1. Release the building wrap from above the header (previously taped
up) and overlap the header ashing. Seal the ends with self-adhesive
ashing or building wrap tape.
2. Seal the top corners of the window with a 1/4" bead of sealant. Tool
into a llet shape.
3. Create a continuous air seal around the entire interior perimeter of
the window with a bead of sealant where the window contacts the
structure.
COMPLETE GARDEN WINDOW INSTALLATION
Seal corners
AFTER INSTALLATION
1. Adjust window
for best
operation.
2. Install exterior
wall surface
within
seven days
of window
installation.
3. Maintain
gap of 3/8"
between
window frame
and nal
exterior wall
surface (siding,
stucco, etc.).
4. Ensure weep
holes/channels are clear of debris for proper water drainage; do not
seal weep holes/channels if present.
5. Protect recently installed units from damage from plaster, paint, etc.
by covering the unit with plastic.
Gap
Please visit www.jeld-wen.com for warranty and care and
maintenance information.
Thank you for choosing
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JELD-WEN reserves the right to change product specications without notice. Please check our website, jeld-wen.com, for current information.
8
(05/14)
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